我在调整Java Swing组件时遇到了一些问题

时间:2016-09-11 23:36:25

标签: java swing user-interface

我正在构建一个Java Swing应用程序,我希望它能以这种方式工作:

调整窗口大小时,JScrollPane对象(在JSplitPane范围内)应重新设置其最小,最大和首选大小,并将其作为当前窗口宽度的参考。

我在componentResized()类的方法ComponentAdapter上修复了此设置,但是,它不能像假设那样工作。

这是代码。我希望你在电脑上测试一下,可以帮助我。

非常感谢你付出的时间。

import java.awt.event.*;
import java.awt.geom.*;
import javax.swing.*;
import java.awt.*;


public class ComVisor extends JFrame
{
private JList imagesList;
private JPanel imagePanel;
private JSplitPane mainPanel;
private JScrollPane scrollPanelRight;
private int width;

public ComVisor(String nameApplication)
{
    setFrame(nameApplication);
    setComponents();
}

private void setFrame(String nameApplication)
{
    setLayout(new BorderLayout(1, 3));
    setTitle(nameApplication);
    setMinimumSize(new Dimension(400, 200));
    setDefaultCloseOperation(EXIT_ON_CLOSE);
    setSize(new Dimension(Toolkit.getDefaultToolkit().getScreenSize()));
    setLocationRelativeTo(null);

    this.addWindowListener(
        new WindowAdapter() 
        {
            @Override
            public void windowClosing(WindowEvent e) 
            { 
                JOptionPane.showMessageDialog(ComVisor.this, nameApplication + "-Salida"); 

                return;
            }
        }
    );
    this.addComponentListener(
        new ComponentAdapter()
        {
            @Override
            public void componentResized(ComponentEvent E)
            {   
                width = getWidth();

                scrollPanelRight.setPreferredSize(new Dimension(width / 3, 0));
                scrollPanelRight.setMinimumSize(new Dimension(width / 7, 0));
                scrollPanelRight.setMaximumSize(new Dimension(width / 5 * 4, 0));

                return;         
            }
        }
    );  
}

private void setComponents()
{
    String[] a = {"dsdsdsd", "dsdsdkkhskj", "dskhkjdhskjdhksdh", "sdskdhskjhds"};
    JButton b = new JButton("Soy un boton xD");
    JPanel p = new JPanel();
    imagesList = new JList(a);
    p.add(b);
    imagesList.setVisibleRowCount(100);
    scrollPanelRight = new JScrollPane(imagesList);
    mainPanel = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, scrollPanelRight, p);
    add(mainPanel, BorderLayout.CENTER);

    return;
}

private class Manejador implements ActionListener
{
    @Override
    public void actionPerformed(ActionEvent listener)
    {
        return;
    }
}
}

这是主类,它调用一个Comvisor对象

import static javax.swing.SwingUtilities.invokeLater;

public class Principal
{
public static void main(String[] args)
{
    invokeLater(
        new Runnable()
        {
            @Override
            public void run()
            {
                new ComVisor("ComVisor").setVisible(true);

                return;
            }
        }
    );

    return;
}
}

0 个答案:

没有答案